Page 38 - science
P. 38
4 Put each cotton wool ball in water. Leave each
one for 5 minutes.
Talk in your
paper tin foil group about
your results.
Did you
correctly guess
which material
is the most
waterproof?
Which material
plastic wrap cloth is best to make
an umbrella?
5 Copy and complete the table. Put a tick under
the material that kept the cotton wool the driest. Why?
Have you ever
Paper Tin foil Plastic wrap Cloth
seen an
umbrella made
from this
This table shows your results. material?
Key idea 2 What is it Made of?
● Some materials keep water out.
● We say they are waterproof.
39
■ For more activities, go to Workbook 1 page 39.
